Time control device



March 21, 1950 HAMlLToN 2,501,274

TIME CONTROL DEVICE Filed Nov. 20, 1947 4 Sheets-Sheet l March 21, 1950L. s. HAMILTON TIME CONTROL DEVICE 4 Sheets-Sheet 2 Filed Nov. 20, 1947\\N\\\ \\N\ \u lawn/o2 Zawrence Wan/73022 M-7 W}, 0d?

March 21, 1950 L s HAMILTON 2,501,274

TIME CONTROL DEVICE Filed Nov. 20, 1947 4 Sheets-Sheet a azwezfbzfif vfl/a .6 a; azazw'ezge ggrazzzf/fozz I ne Maw, My flow March 21, 1950 L.G. HAMILTON 2,501,274

TIME CONTROL DEVICE Filed Nov. 20, 1947 4 Sheets-Sheet 4 Maven/ oz vZawrezzce dWazzzf/iozz Patented Mar. 21, 1950 UNITED STATES PATENT orncsi 2,501,274, W

Lawrence G. Hamilton, Des Moinea, Iowa.

Application November 20, 1941, Serial No. 787,241

The present invention relates'to a time control device to open or closean electric circuit and havin the electric circuit remain open or closedfor any desired time and as one use to which the time control device mabe placed, it is shown as controlling a radio receiving set.

It is an object of the invention to provide a time control device tocontrol one or a plurality of electric circuits for a time interval orany number of time intervals desired.

It is a further object of the invention to provide a time control deviceto control one or a plurality of electric circuits for a time intervalor any number of time intervals desired; by a member divided into aplurality of series of time intervals; said member associated with theelectric circuit or circuits so that any time interval of any series oftime intervals selected from the member'may close any electric circuitdesired an if a time interval is not selected the electric circuit willremain open.

It is a still further obiect oi' the invention to provide a time controldevice to control one or a plurality of electric circuits for a timeinterval or any number of time intervals which time control device isadjustable so it may be set to start for any time desired.

It is a'still further obiect of the invent on to provide a time controldevice that is simple in construction and operation and economical bothin construction and operation; long lasting and durable in operation,requiring less repair and lost time in operation; simple of design andeasy of repair in case of breakdown; requires no special skill on thepart of an operator to attach to an electrical circuit or circuits foroperation; a device easy to operate by a user; and a device economicallypriced.

It is a still further object of the invention, as one means of use forthe time control device, to attach the t me control device to a radioreceiving set, the time control device being a separate member attachedto the radio or built into the radio receiving set, to turn on the radioreceiving set and tune the radio receiving set to a desired stationwherein the selection of programs and radio stations may be made overaperiod of time without need of touching the radioreceivingset fortheperiod of time.

With the foregoing and other objects in view,

the invention will be more full described here-- 8 Claims. (Cl- 161-1) 2to like or corresponding parts throughout the several viewsz" Figure 1is an elevational view the time control device as a separate unit.

Figure zis a sectional view taken on the line 2-2 of Figure 1.

Figure 3 is an elevational view with parts of the time control devicebroken away to show several of the working parts of the time controldevice.

Figure 4 is a plan view of the interior of the time control device withthe top broken away and showing the time control device as having someunits of a radio receiving set incorporated with the time controldevice.

Figure 5 is a front elevation view 0! the time control device withportions of the front broken away. Figure 6 is a wiring diagram of thestructure of Figure 4 illustrating how the time control device isconnected to turn on a radio receiving set and into the tuning means ofa radio receiving set.

Figure '1 is an elevational view of a console radio receiving set withthe time controldevice built into the console radio receiving set.

Figure 8 is a wiring diagram illustrating how the time control devicemay be built into a radio receiving set and become a part thereof.

The time control device is represented in Figure 1 as being encased in acabinet i which may be of wood, resin or any other well known materialfor this purpose. An electrical conductor?! attaches into the timecontrol device and an electrical conductor 3 leaves the time controldevice to connect with audio means and a speaker unit where the timecontrol device is connected with a portion of a radio receiving set orthe time control device could connect to a number of window lightelectric circuits; in fact the present structure can be attached to mostany electrical circuit to open or close the circuit at specific times.

The time control device, now referring to Figures 4 and 5 has a timemechanism 4, which may be in the form oi. an electric clock motor withthe electric motor calibrated so that the electric motor shaft 5 makesone revolution per minute, a. gear 6 is rotatably mounted in supportmembers I and 8 at each end of gear 6. There are suitable bearings (notshown) between the support members I and 8 and the gear 6 and the gear 6is rotated by the shaft 5 from the electric'motor in timemechanism 4. iA reduction gearing-9 between the gear 6 and electric motor shaft 5reduces the speed of gear 6, three to one,

hence the speed of gear 6 is one revolution every three minutes.

Means in the form of a carrier III, best shown in Figure 3, rides on thegear 3 and is advanced along the gear 3 by the rotation of gear 3. Thecarrier III, as presently shown, is made to travel one-twentieth of aninch each revolution of the gearl which will require twenty revolutionsof gears to move the carrier l3 one inch.

Two guide runners II and I2 are spaced vertically from each other andtheir ends are attached to support members 1 and 3. The guide runners IIand I2 receive a back plate I3 of the carrier III and form a support forthe carrier Ill. The back plate I3 is drilled from edge to edge topresent openings into which the guide runners I I and I2 enter and theback plate l3 and carrier ID are movable back and forth on the guiderunners II and I2.

A front plate I4 is a part of carrier Ill and is spaced from back plateI3. The two plates l3 and I4 are attached together by bolts I5 at eachcorner of the plates I3 and I4 with springs I5 surrounding each bolt andholding the plates I3 and I4 separated. The plate I4 is movable towardthe plate |3 when a pressure is applied to the plate H to compresssprings I6. A half-nut I1 is attached to the front plate I4 and mesheswith the gear 3. The carrier III is advanced on the guide runners II andI2 by the half-nut I1 meshing and advancing on gear 5.

A pointer I8 extends forwardly from the carrier I and projects through aslit |9 in the front of the cabinet I and a calibrated scale 29, inquarter hours, is printed on the front of the cabinet I which scale 23indicates the movement of carrier III on the gear 8. If the pointer I8is moved inwardly, the half-nut will be disengaged from the gear 3 bythe force on the front plate I4 compressing springs I6 and allowingfront plate |4 to move rearwardly on bolts I5. With the pointer I3 stillpushed inwardly, the pointer I3 can be moved from right to left or leftto right, which will move the carrier III along the guide runners II andI2 to any position desired as determined by the scale 23.

A plate 2| attaches to the end supports 1 and 3 and extends along theentire length of the gear 5. The plate 2| is made of a metal materialand is an electrical conductor. The metal plate 2| has side portions 22and 23 to form a slot to receive a member 24 divided into a series oftime intervals. The member 24 may be a card member and may be made up tocare for any period of time desired. As shown for illustrative purposes,the card 24 is made for a twelve hour period and the scale 29 is made tocorrespond to the card 24.

The card 24 as can best be seen from Figure is scored into rectangularblocks 25 with each block 25 re resenting a time interval and the blocks5 scored in the present instance to corres ond to a fifteen minuteperiod. In other words the card 24 is so made as to correspond withscale on the front of the cabinet I. The card 24 is shown with fourlines of blocks hence the present card 24 is adapted to control fourdifferent electric circuits. The card 24, as previously stated, is madeto control electric circuits for twelve hours, hence to set the timecontrol device into operation for a twelve hour period the card 24 mustbe set for the time intervals it is desired for one electric circuit orany of the four electric circuits it is desired to have open or closed.If it is desired that any electric circuit remain open for any timeinterval then the blocks 25 are not punched from the card 24. If it isdesired that any electric circuit be closed, then block 25 is punchedfrom card 24 leaving an opening 250 in the card for that time interval.5 After the card 24 has been properly prepared for a twelve hour period,the card 24 is entered into the time control device througha slot 23, inthe top of the cabinet I. The card 24 is received between the members 22and 23 and guided into the position shown in Figure 5 in back of plate2|. With the card 24 in place, the pointer I3 is pushed in, the half-nutll disengaged from the gear 5 and the carrier I0 moved to the left untilthe pointer I3 is Just opposite (I) on the scale 20. The card 24 is nowin position to control the time control device for a period of twelvehours.

The card 24 is guided into position between side portions 22 and 23 andfinally comes to rest in the position shown in Figure 5. The carrier IDhas attached thereto a series of spring fingers 21 which ride across thecard 24 as the carrier |Il advances on thegear 5. The spring finger 21,or fingers 21, enter the opening 25a where block 25 has been punched outand contact the metal plate 2|. Metal plate 2| being a conductor,electric current will flow through spring fingers 21, through conductors28 attached to carrier I3 and spring fingers 21, with the conductors 23running to a series of relays, one of which is shown at 29 (Figure 4)and to be described later with regard to the wiring diagram of Figure 6.The relay 29 is actuated to close an electric circuit for the particulartime interval having an opening 25a in the card 24.

If any block 25 has not been punched from card 24, so as to leave anopening 25a, the card 24 will serve as an insulator or non-conductor,and no contact will be made between the spring fingers 2! and plate 2|.Hence when the electric circuit to be controlled is desired to be openfor any time interval, block 25 for that time interval is not punchedfrom card 24 and the block acts as an insulator between spring fingers21 and plate 2| and will not allow an electric circuit to beestablished.

Referring to Figure 4, the motor shaft 5 has a bevel gear 30 mountedthereon and rotatable with the shaft 5. The bevel gear 30 meshes with asecond bevel gear 3| on the end of a shaft 32 journaled in a support 33.The shaft 32 has attached thereto and rotatable therewith two ringmembers 34 and 35. The first ring 34 is an impulse ring and the secondring is a holding ring. The shaft 32 continues through the cabinet I andterminates in a knob 35. A spring 31 surrounds the shaft 32 between theholding ring 35 and cabinet I and exerts its pressure to hold the bevelgears 30 and 3| in mesh. To turn 60 the rings 34 and 35 to adjust therings 34 and 35 with the scale 33 on the front of the cabinet I,

the knob 39 is pulled outwardly compressing spring 31 and pulling bevelgear 3| away from the bevel gear 30 and shaft 32 is rotated until 65 thepointer 39 on knob 33 points to the proper place on scale 38. The shaft32 cannot be turned against the clock motor of time mechanism 4, henceit is necessary to disengage gears 33 and 3| to properly adjust rings 34and 35.

In the operation of the time control device, it is thought the operationof the structure can be best understood by referring to the wiringdiagram of Figure 6 along with the previous figures Just described. Theconductor cord 2 is first 75 plugged into an electrical outlet to supplyelectric hr the impose of device is shown conradio receiving set whichradio set comprises a tuning unit, detecting power supply unit in thetime control device cabinet I connected into a separate audioandspeakerunit. Aplug llonthe flme mechanism I to the plug II.

The switch I! is controlled from the front panel ofthecabinet I byknobll. Ifitisdesiredto operate the radio receiving set without the timecontrol device, the knob 46 is turned to the left or man for manualoperation of the radio receiving set. The radio receiving set is thenjust supplied electric current through the time control device. The plugon the conductor leading to a separate audio amplifier and speaker unit(not shown) may be plu ged into socket st in the time control devicehence electric current would flow through switch 42, to conductor 41,socket l6, conductor 46 and thence to ground conductor N and throughplug ill to complete the electric circuit. when the knob 45 is turnedupwardly- "Auto the switch I! is thrown to the left and the time controldevice is now operably connected with the radio receiving set.

InthewiringdiagramofFigure6,andthe top plan view of Figure 4, the timecontrol device is shown as connected into portions of a radio receivingset with conductor 3 running to an audio amplifier and speaker unit (notshown). It is noted that the radio receiving set portions shown inFigures 4 and 6 may be included along with the audio features and aspeaker in a separate radio receiving set and the time control devicemay be a separate member entirely. In the structure of Figures 4 and 6,the tuning unit, detecting unit and power supply unit are shown inconjunction with the time control mechanism within the same cabinet I asan illustration of one combination of the time control mechanism in aradio receiving circuit. 11 a separate time control member only is made,the whole radio receiving set would plug into socket 46.

Electric current flows from conductor ll through switch 42 to conductor49. From the conductor 4!, the electric current flows to a conductor 66on the right and a conductor ti on the left. Tracing first the flow ofelectric current to the conductor iii, the electric current flows totube heaters of tubes i, 5!, 53 and 64 of the radio receiving set toheat the tubes 6|, I2, 63 and 64. This electric circuit is shownschematically with the tube heaters represented at Ila, 62a, Ito and64a. and connected to conductor ll. There will be a voltage drop of 12%v., 12% v., 12% v. and 35 v. through the tube heaters Ia, 2a, "a and Ilawith the resistor 66 completing the voltage drop to 110 v. Conductor Itconnects to ground conductor M to complete the circuit. Electric currentflows to the tube heaters Ha, 62a, 63a and "a at all times when aportion of the radio receiving set is included with the tune controlmechanism as in Figures 4 and 8.

Conductor 61 connects into the half wave recti- 6 her tube ll, known inthe art as a 8525 tube. Electric current flowing to this tube It is 117v. A. C. and from the cathode oi the tube 64, after arectiflcationwithin tube 64 flows 117 v. D. C. electric current. Thecondenser 66 to the right by-passes to ground some of electricalinterference coming on the A. C. line while the two condenser-resistorunit It smooths the pulsations from the D. C. current to make a pure D.C. current. The D. C. current then flows to the voltage divider 66 whichis adjustable and is adjusted to allow 24 v. D. C. current to flow tothe conductor II. The conductor 6| connects into relays 2!, I2, 66 and64. The rela s 29. 62, 63 and 64 just happen to be operable on 24 v. D.C. current hence the A. C. current must be changed to D. C. and reducedin voltage. Any type of relay 29, 62, 63 and 6| may be employed, but foreconomical reasons this particular type relay was employed. The members64, 5S and 60 could be eliminated from the structure if a relay operatedon v. A. C.

current were employed. With the present 24 v.

relays, electric current .must always be available in conductor 6i,hence electric current must always be supplied to conductor ill.

Each of the four relays are the same, so only relay 2! will be explainedin detail. An electromagnet 65 is included in each relay and each relayincludes four electric switches. The first or top switch 66 has one side61 of the switch connectin with conductor 6| through electro-magnet 65while the other side 68 of the switch 66 connects by conductor 69 withthe holding ring 86. The side 61 of the switch 66 connects by conductorll through a second conductor 12 with the top spring finger 2'! on thecarrier Iii. The second switch III has one side 13 of the switch I0connected to conductor 14 which conductor 14 connects through the switch42.

The other side 15 of the switch 10 connects through conductor 16 withthe conductor 5|. After the return electric current passes throughswitch 42, it goes through conductor 41 to socket 46 and. through theaudio amplifier'and speaker unit plugged into socket 46. The conductor 3is plugged into the audio section of the second radio receiving set andthe switch 10 whenclosed allows electric current to pass to and turn onthe audio amplifier and speaker unit. After passing through the audioamplifier and speaker unit, the circuit is completed through conductors48 and I. The third and fourth switches 11 and I8 have sides 79 and 60both connecting to conductors ii and 82. The conductors BI and 82connect into tuning means in the radio circuit of the radio receivingset (to be later described) and complete an electric circuit throughswitches 11 and it and conductor 83 to a. suitable ground 64.

In operation of the time control device and in combination with a radioreceiving set, the card It as shown in Figure 5 is made up to functionfor a twelve hour period. The card 24 can be made with one row of blanks25 or as man as desired. In the present instance, the card 24 is shownwith four rows of blanks, hence control may be exercised over fourseparate electric circuits or with a radio receiving set, control may beexercised over four difierent broadcasting stations.

The radio programs for a day or for a 24 hour period are available inall local newspapers hence if a radio listener wishes to select what hecares to listen to in advance, he can take the radio program in thenewspaper and his card 24 and select the programs desired. The presentcard It is for twelve hours, hence in selecting the program, some timemust be assigned to the first hour on the card. For instance, if theselector wanted the Programs to start at 10:00 a. m. the first hour onthe card 24 would then be from 10:00 a. m. to 11:00 a. m. and the twelvehour period would end at 10:00 p. m. as can be seen from the card 24 inFigure 3, the blanks 20 represent a fifteen minute period and the blanks2| must be punched from the card leaving an opening 20a in order for thetime control device to function. The four vrows of blanks 2' willrepresent four dlfierent broadcasting stations, hence the selector goesalong the radio program, selecting the program .and station for theparticular time interval that 'he desires. If he wishes the radioreceiving set to be silent. no selection is made for that time interval.It is necessary in the beginning, that the selector get the card 24 intothe time control device somewhere close to the hour that the card ispunched to start, carrying through the present example, at 10:00 a. m.The card 24 is now ready to be inserted into slot 20 in the top of thecabinet I.

The pointer I is moved inwardly, as previously explained, to free halfnut I! from gear 0 and the carrier I0 is moved to the left until pointerit points to (1) on the scale 20. The knob I8 is also turned to zero onthe scale 28 and the card 24 is entered into slot 20 and the timecontrol device is ready to function.

'-The carrier II is now advanced to the right on gear 0 and can travelin a twelve hour period to the-right end of gear I. When the carrier IIIhas traveled a sufilcient distance on gear 6, that a twelve hour periodhas elapsed, the gear 6 may be made smooth and of a smaller diameterthan the gear I so the carrier will slip as the gear 0 rotates and notbe forced further to the right; or an electric switch connecting intothe electric circuit flowing to the clock motor of the time mechanism 4can be placed where the switch would be held in open position as long asthe carrier it was at the end of its travel on gear 0, hence stoppingthe motor of time mechanism 4 and rotation of gear 0.

with the card 24 in place in back of conductor plate 2i, the springfingers 21 connected on carrier ll ride over the card 24 as the'carrierll advances on the gear 0. The gear I is rotated to advance the carrierII the distance of four time intervals or blanks 2! on the card 24 everyhour. If say the first time interval or blank 24 is Punched from thefirst row on the card 24, it will represent the first time interval or10:00 a. m. to 10:15 a. m. and will be the radio station represented bythe first row of time intervals. The top spring finger 21 will enter theopening 28a in the card 24 and contact the plate '2l. This closes anelectric circuit through conductor ii, to electrcmagnet CI of the relay2!. It is noted that relay '2 will operate when an opening 28a occursinthe second row of time intervals on card 24;

, relay I will operate when an opening 25a occurs .in the third row oftime intervals on card 24;

and relay 04 will operate when an opening 25a occurs in the fourth rowof time intervals on card 24. The electro-magnet II of relay 2! will beenergized thus closing switches 00, Ill, 11 and The closing of switch .0will complete the electric circuit through electro-magnet 0| toconductors II and I2, spring finger 21, plate 2!, conductor ll, springfinger l0. impulse ring 34 and conductor "to a suitable ground It fromthe side 41 of switch 00. From the side 00 of the switch 00. electriccurrent fiow is through conductor I. to holding ring 84, spring fingerI. and thence through conductor 01 to ground 0'. Thus it canbe seen thatspring fingers 21 entering openings 20a in the card 24 close an electriccircuit through electro-magnet 0| of relay 2! which relay closesallswitches It, ll. 11 and I0. The switch ll being closed, electric currentwill fiow from conductors II and It to the side ll of switch ll, side 13of switch ll, conductors l3 and [4. switch 42. conductor 41, socket 40and thus through the audio amplifier and speaker unit. Electric currentwill always fiow through conductors ll and S1 to tube 54, unit ll,conductor 00 and thence to the tuning mechanism (to be later explained)within the portions of radio receiving set within cabinet I. Conductorll runs from the tuning mechanism to switch l1 ,and conductor 82 runsfrom the tuning mechanism to switch II from where both switches 11 andII connect to con-' ductor 83 which runs to ground 84.

It can thus be seen that spring fingers 21 con-- tacting plate 21 closean electric circuit to ground that energizes electro-magnet "to closeswitches 60, l0, l1 and 18. Switch it closes an electric circuit toholding ring II, the function of which will be presently described. Thetiming of the radio receiving set is dependent upon the row of timeintervals for which the time interval or blank 25 is punched. Theelectric circuit through the timing mechanism is completed throughswitches 11 and I0 to ground 80.

The function of the holding ring 30 and im-.

pulse ring 34 will now be explained. The rings 34 and I! are of exactlythe same size and are calibrated on shaft 32 to make one completerevolution every hour. Carrying through on the previous example, at10:15 a. m. or the end of the first time interval selected, it isnecessary to open the switches l0, l0, l1 and II of relay 2! because forthe next time interval of 10:15 a. m. to 10:30 a. m. anotherbroadcasting station may have been selected. Hence, instead of measuringthe time interval by the opening 250 in the card 24, the time intervalis measured by the holding ring 30.

The holding ring SI is divided into quadrants and as the ring 35 rotatesa conductor spring finger 89 contacts the outer periphery of ring 14.

a The outer periphery of each quadrant will represent a fifteen minutetime interval, with the ma jor portion 00 on the outer periphery ofeach, quadrant being of a conductor material and asmaller portion II onthe outer periphery of each quadrant being a non-conductor material. The

ring 30 is so calibrated that the beginning of the conductor portion 00of each quadrant occurs at the beginning of each time interval namely;10:00 a. m., 10:15 a. m.. 10:30 a. m., etc. The non-conductor portion iiof each quadrant occurs at the end of each time interval. Thenonconductor portion SI of each quadrant may be of a length that willrepresent 1 to 15 seconds. The impulse ring 34 is divided-into quadrantsalso. each representing a fifteen minute time interval, with the majorportion 02 on the outer periphery of each quadrant being a non-conductormaterial and a smaller portion 93 on the outer periphery of eachquadrant being a conductor material. The rings 34 and 35 are attached tothe same shaft 32 and rotate together. The rings 34 and 10 are somounted with respect to each other on shaft 32 that the beginning ofconductor portion 00 on ring II and the beginning of conductor portion03 on ring 34, each contact spring fingers ll and88respectiveiy,atthebeginningoieach time interval.

In operation, it will be noted that electriccurrentwiilfiowtotbeimpulseringfl whenany oneoithespringfingers 21enccimteranopening 28a in the card 28, to allow spring finger 21 tocontact plate 2|. Current will fiow through the electro-magnet 88,conductors 1| and 12, spring finger 21, plate 2i, conductor 88, springfinger 88. conductor portion 88 in ring 88 to conductor 81 thence toground 88. Electric current would also fiow through spring finger 88 tothe holding rim 88. When current fiows through electromagnet 88, it isenergized and switches 88, 18, 11 and 18 become closed. Electric currentnow fiows from the side 88 01' switch 88 to conductor 88 which leads tothe holding ring 88.

As the rings 88 and 88 rotate and near the end of the time interval, thespring finger 88 is riding on the non-conductor peripherial portion 92of the impulse ring 88. When the non-conductor portion 8I of the holdingring contacts the spring finger 88, it is noted that the spring finger88 is also contacting the non-conductor portion 82 on the outerperiphery of the impulse ring 88. As previously stated, the rings 88 and88 have been so mounted that the non-conductor portions 82 and 8i on therings 88 and 88 coincide for a period or 1 to seconds.

When both spring fingers 88 and 89 are contacting the non-conductorportions 82 and 9I of the rings 88 and 88, the electric circuit throughthe electro-magnet 88, conductors H and 12, spring finger 21, plate 2|,conductor 88 to spring finger 88 is broken. The electric circuit throughswitch 88, formed when electro-magnet 88 is energized by the previouscircuit being closed, is through conductor 1I, switch 88, conductor 88to holding ring 88, spring finger 88, conductor 81 and thence to ground88. This circuit is broken I because spring finger 88 is now contactinga nonconductor 8| hence the electro-magnet 88 will become deenergizedand the switches 88, 18, 11 and 18 will be allowed to open. This will bethe situation at the end of each time interval.

As the rings 88 and 88 continue rotating they will come to the beginningof a new time interval and simultaneously the spring finger 88 willcontact one of the conductor portions 98 on the impulse ring 88 and thespring finger 89 will also contact one of the conductor portions 98 onthe holding ring 88. The conductor portions 88 on the outer periphery ofthe impulse ring 88 extend a distance equivalent to the distance aroundthe periphery of the holding ring 88 of the non-conductor portions 8|;or in timeequivalent, 1 to 15 seconds. At the beginning of each timeinterval then, the spring fingers 88 and 88 each contact conductorportions on the rings 88 and 85. Electric current cannot flow to theholding ring 88 through conductor 88 until the switch 88 is closed. Theswitch 88 is closed when the electric circuit through the impulse ring88 is closed. Therefore at the beginning of each time interval, thespring ductor portion 82 and the electric circuit through electro-magnet88 and impulse ring 88 is broken. It is then that the electric circuitthrough the holding ring "is established and the electroma net 88 isheld energized and holds the switch 88 closed. When the spring finger 88starts riding on the non-conductor portion 8| of holding ring 88 at theend of the time intervahthe spring finger 88 is also riding on thenon-conductor portion 82 ct impulse ring 88. Both electric circuits fromthe electro-magnet 88 through impulse ring 88- and holding ring 88 arenow broken and the electro-magnet 88 deenergized. The switches 88, 18,11 and 18 now open. This break is made in order that one or the springfingers 21 may enter an opening 28a in another row of blanks 28 on thecard '28 for the next time interval, and have a new relay 82, 88 or 88actuated.

The rings 88 and 88 may be turned to the beginning or any of the fourtime intervals by turning knob 88. The knob 88 is turned to adjust therings 88 and 88 to the proper time interval to co-ordinate the rings 88and 88 with the card 28 when inserting the card 28 into the time controldevice. y

In Figure 6, the portion of the radio circuit shown is the standardsuperheterodyne radio circuit common and now in use in most radiosofiered for sale. The radio circuit wfll be described briefiy to showhow the present time control means fits into a radio circuit. It isthought that the plugging into the socket 88 of the electric conductorfrom the radio receiving set has been explained sufiiciently heretoforeand a thorough understanding oi how v. D. C. current gets to the radiocircuit when the radio circuit operates.

A loop antenna is shown at 88 and connects by conductor 88a into asignal input tube or converter tube 8I. representing any one of aplurality of signal receiving and amplifying tubes to which is connectedtuning means in the form of condensers 88, 88, 81 and 88 and condensers88, I88, I8I and I82. The condensers 98, I88, IM and I82 are connectedwith a local oscillator circuit to tube 8|.

The condensers 88, 88, 91 and 98; and condensers 89, I88, MI and I82 aretuned to the frequencies of the four broadcasting stations asrepresented on the card 28. The cards 28 will care for a given localityor city and will be set up for the broadcasting stations nearest to theuser or the broadcasting stations representing the main network ofstations. The card 28 may be made for any number of broadcastingstations desired, being merely a problem of adding sumcient tuningcondensers and relays.

The condensers 88 and 88 are tuned for the same broadcasting station andare connected by con- 'the lower two switches in relays 28, 82, 88 and88 are closed, a ground circuit through the tuning means is completedwith the radio receiving set tuned to the desired station for any timeinterval.

Figure '7 shows the time control device built into a console radiocabinet I88 to make a single unit with the knobs 38 and 48 projectingthrough panel I, scale 20 on panel I and pointer ll extending throughslot is in panel I04. A special slot 26 is placed in the panel I toreceive the card 24 and all the structure previously described ascomprising the time control device as incorporated within the consoleradio I".

Figure 8 showsthe wiring diagram of the radio receiving set of a consoleradio having the time control device incorporated along therewith. Thesupply of electric current to the relays 29, 62, 63 and 64 comes fromsource I05, to the conductor 8| and not from the voltage divider 60 asin Figure 6. The relays 29, 62, 53 and BI are of course selected so asto be operable on the current supplied. The operation is similar inevery respect to the operation previously described with the entireradio receiving circuit plugged into socket ll.

It will be understood that the invention has been described for purposesof illustration and explanation and that changes and variations arepossible without departing from the scope of the invention; all suchmodifications and changes are intended to be included in the appendedclaims.

I claim:

1. A time control device for an electric circuit to a member to beactuated comprising a time mechanism in the form of an electric motorcalibrated to rotate a shaft one complete revolution during a specifiedtime interval, said motor shaft associated with a gear and rotating thegear, a carrier mounted on the gear and moved a calibrated distance withthe passage of time, a card member divided into a series of timeintervals, any of which intervals may be selected and punched from thecard leaving an opening in the card, said card spaced from the carriermember and the card being between the carrier and a conductor connectedinto the electric circuit to a member to be actuated, means from thecarrier member passing through the opening in the card and contactingthe conductor behind the card to close the electric circuit to a memberto be actuated through a relay, an impulse ring and thence to ground;said relay being energized to close a switch to connect the electriccircuit into the member to be actuated and means to hold the relayswitch closed for the time interval represented by the opening in thecard.

2. A time control device for an electric circuit to a member to beactuated comprising a time mechanism in the form of an electric motorcalibrated to rotate a shaft one complete revolution during a specifiedtime interval, said motor shaft associated with a gear and rotating thegear, a carrier mounted on the gear and moved a calibrated distance withthe passage of time, a card member divided into a series of timeintervals, any of which intervals may be selected and punched from thecard leaving an opening in the card, said card spaced from the carriermember and the card being between the carrier and a conductor connectedinto the electric circuit to a member to be actuated, means from thecarrier member passing through the opening in the card and contactingthe conductor behind the card to close the electric circuit to a memberto be actuated through a relay, an impulse ring and thence to ground;said relay being energized to close a switch to connect the electriccircuit into the member to be actuated and a holding ring through whichelectric current flows after electric current no longer fiows throughthe imtim: interval represented by the opening in the car 3. A timecontrol device for an electric circuit to a member to be actuatedcomprising a time mechanism in the form of an electric motor calibratedto rotate a shart one complete revolution during a specified timeinterval, said motor shalt associated with a gear and rotating the gear.a carrier mounted on the gear and moved a callbrated distance with thepassage oi time, a card member divided into a series of time intervals,any of which intervals may be selected and punched from the card leavingan opening in the card, said card spaced from the carrier member and thecard being between the carrier and a conductor connected into theelectric circuit to a member to be actuated, means from the carriermember passing through the opening in the card and contacting theconductor behind the card to close the electric circuit to the member tobe actuated through a relay, an impulse ring and thence to ground; saidrelay being energized to close a switch to connect the electric circuitinto the member to be actuated, said impulse ring being calibrated toclose the electric circuit to the member to be actuated for a limitedtime at the beginning of each time interval and a holding ring throughwhich electric current fiows after the electric current no longer flowsthrough the impulse ring to hold the relay switch closed for the timeinterval represented by the opening in the card.

4. A time control device for an electric circuit to a member to beactuated comprising a time mechanism in the form of an electric motorcalibrated to rotate a shaft one complete revolution during a specifiedtime interval, said motor shaft associated with a gear and rotating thegear, a carrier mounted on the gear and moved a calibrated distance withthe passage of time, a card member divided into a series of timeintervals, any of which intervals may be selected and punched from thecard leaving an opening in the card, said card spaced from the carriermember and the card being between the carrier and a conductor connectedinto the electric circuit to a member to,be actuated, means from thecarrier member passing through the opening in the card and contactingthe conductor behind the card to close the electric circuit to themember to be actuated through a relay, an impulse ring and thence toground; said relay being energized to close a switch to connect theelectric circuit into the member to be actuated, said impulse ring beingcalibrated to close the electric circuit to the member to be actuatedfor a limited time at the beginning of each time interval by a limitedportion on the outer periphery of the impulse ring being a conductorportion at the beginning of each time interval and a holding ringthrough which electric current flows after the electric current nolonger flows through the impulse ring to hold the relay switch closedfor the time interval represented by the opening in the card by 9.limited portion on the outer periphery of the holding ring being anon-conductor at the end of each time interval.

5. A time control device for an electric circuit to a member to beactuated comprising a time mechanism in the form of an electric motorcalibrated to rotate a shaft one complete revolution during a specifiedtime interval, said motor shaft associated with a gear and rotating thegear, a carrier mounted on the gear and moved a call- 12 pulse ring tohold the relay switch closed for the 13 brated distance with the passageof time, a card member divided into a series of time intervals. any ofwhich intervals may be selected and punched from the card leaving anopening in the card, said card spaced from the carrier member and thecard being between the carrier and a conductor connected into theelectric circuit to a member to be actuated, means from the carriermember passing through the opening in the card and contacting theconductor behind the card to close the electric circuit to the member tobe actuated through a relay, an impulse ring and thence to ground; saidrelay being energized to close a switch to connect the electric circuitinto the member to be actuated, said impulse ring being calibrated toclose the electric circuit to the member to be actuated for a limitedtime at the beginning of each time interval by a limited portion on theouter periphery of the impulse ring being a conductor portion at thebeginning of each time interval with the remainder of the periphery ofthe impulse ring for each time interval being a non-conductor, a holdingring through which electric current fiows after the electric current nolonger fiows through the impulse ring to hold the relay switch closedfor the time interval represented by the opening in the card by alimited .portion on the outer periphery of the holding ring being anon-conductor at the end of each time interval with the remainder of theperiphery of the impulse ring for each time interval being a conductor,a spring finger electrically connected to the conductor back of the cardand to ground, riding around the outer periphery of the impulse ring anda spring finger riding around the outer periphery of the holding ring,electrically connected to the electric circuit from the relay andestablishing the electric circuit through the holding ring to ground.

6. A time control device for an electric circuit to a member to beactuated comprising a time mechanism in the form of an electric motorcalibrated to rotate a shaft one complete revolution during a specifiedtime interval, said motor shaft associated with a gear and rotating thegear, a carrier mounted on the gear and moved a callbrated distance withthe passage of time, a card member divided into a series of timeintervals, any of which intervals may be selected and punched from thecard leaving an opening in the card, said card spaced from the carriermember and the card being between the carrier and a conductor connectedinto the electric circuit to a member to be actuated, means from thecarrier member passing through the opening in the card and contactingthe conductor behind the card to close the electric circuit to a memberto be actuated through a relay, an impulse ring and thence to ground;said relay being energized to close a switch to connect the electriccircuit into the member to be actuated, a holding ring through whichelectric current flows after electric current no longer flows throughthe impulse ring to hold the relay switch closed for the time intervalrepresented by the opening in the card and said impulse ring and holdingring mounted on a common shaft with said common shaft rotatable from thetime mechanism.

'7. A time control device for an electric circuit to a member to beactuated comprising a time mechanism in the form of an electric motorcalibrated to rotate a shaft one complete jiavolution during a specifiedtime interval, said'motor shaft associated with a gear and rotating thegear, a carrier mounted on the gear and moved a calibrated distance withthe passage of time, a card member divided into a series of timeintervals, any of which intervals may be selected and punched from thecard leaving an opening in the card, said card spaced from the carriermember and the card being between the carrier and a conductor connectedinto the electric circuit to a member to be actuated, means from thecarrier member passing through the opening in the card and contactingthe conductor behind the card to close the electric circuit to themember to be actuated through a relay, an impulse ring and thence toground; said relay being energized to close a switch to connect theelectric circuit into the member to be actuated, said impulse ring belngcalibrated to close the electric circuit to the member to be actuatedfor a limited time at the beginning of each time interval, a holdingring through which electric current flows after the electric current nolonger flows through the impulse ring to hold the r'elay switch closedfor the time interval represented by the opening in the card, saidimpulse ring and holding ring mounted on a common shaft with said commonshaft rotatable from the time mechanism and means to disconnect thecommon shaft from the time mechanism to adjust the impulse ring andholding ring to the beginning of a time interval.

8. A time control device for an electric circuit to a member to beactuated comprising, atime mechanism calibrated to the passage of time,a carrier means associated with and movable by the time mechanism acalibrated distance with the passage of time, a card member divided intoa series of time intervals, any of which time intervals may be selectedand punched from the card leaving an opening in the card, a conductorconnected into the electric circuit to the member to be actuated, meansfrom the carrier member passing through the opening in the card andcontacting said conductor to close the electric circuit to said memberto be actuated through a relay, an impulse ring, and thence to ground,

REFERENCES CITED The following references are of record in the me ofthis patent:

UNITED STATES PATENTS Name Date Matt Jan. 16, I!

Number

